Murder was in fact a fairly uncommon event in Ankh-Morpork, but there were a lot of suicides. Walking in the night-time alleyways of The Shades was suicide. Asking for a short in a dwarf bar was suicide. Saying “Got rocks in your head?” to a troll was suicide. You could commit suicide very easily, if you weren’t careful.

Add 'whistleblowing' to this list.